1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
// Runner for checkDBHashes() that runs the dbhash command on all replica set nodes
// to ensure all nodes have the same data.
'use strict';
(function() {
load('jstests/libs/parallelTester.js');
function isMasterSlave(uri) {
const mongo = new Mongo(uri);
jsTest.authenticate(mongo);
const cmdLineOpts = mongo.getDB('admin').adminCommand('getCmdLineOpts');
assert.commandWorked(cmdLineOpts);
return cmdLineOpts.parsed.master === true;
}
function isMultiNodeReplSet(uri) {
const mongo = new Mongo(uri);
let hosts = [];
const isMaster = mongo.adminCommand({isMaster: 1});
if (isMaster.hasOwnProperty('setName')) {
let hosts = isMaster.hosts;
if (isMaster.hasOwnProperty('passives')) {
hosts = hosts.concat(isMaster.passives);
}
}
return hosts.length > 1;
}
// Adds the uri and description (replset or master-slave) if server needs dbhash check.
function checkAndAddServerDesc(uri, out) {
// No need to check the dbhash of single node replsets.
if (isMultiNodeReplSet(uri)) {
out.push({type: 'replset', uri: uri});
} else if (isMasterSlave(uri)) {
out.push({type: 'master-slave', uri: uri});
}
}
function checkReplDataHashThread(serverDesc, testData, excludedDBs) {
// A thin wrapper around master/slave nodes that provides the getHashes(), getPrimary(),
// awaitReplication(), and nodeList() methods.
// DEPRECATED: this wrapper only supports nodes started through resmoke's masterslave.py
// fixture. Please do not use it with other master/slave clusters.
function MasterSlaveDBHashTest(primaryHost) {
const master = new Mongo(primaryHost);
const masterPort = master.host.split(':')[1];
const slave = new Mongo('localhost:' + String(parseInt(masterPort) + 1));
this.nodeList = function() {
return [master.host, slave.host];
};
this.getHashes = function(db) {
const combinedRes = {};
let res = master.getDB(db).runCommand('dbhash');
assert.commandWorked(res);
combinedRes.master = res;
res = slave.getDB(db).runCommand('dbhash');
assert.commandWorked(res);
combinedRes.slaves = [res];
return combinedRes;
};
this.getPrimary = function() {
slave.setSlaveOk();
this.liveNodes = {master: master, slaves: [slave]};
return master;
};
this.getSecondaries = function() {
return [slave];
};
this.awaitReplication = function() {
assert.commandWorked(master.adminCommand({fsyncUnlock: 1}),
'failed to unlock the primary');
print('Starting fsync on master to flush all pending writes');
assert.commandWorked(master.adminCommand({fsync: 1}));
print('fsync on master completed');
const kTimeout = 60 * 1000 * 5; // 5min timeout
const dbNames = master.getDBNames();
print('Awaiting replication of inserts into ' + dbNames);
for (let dbName of dbNames) {
if (dbName === 'local')
continue;
assert.writeOK(
master.getDB(dbName).await_repl.insert(
{awaiting: 'repl'}, {writeConcern: {w: 2, wtimeout: kTimeout}}),
'Awaiting replication failed');
}
print('Finished awaiting replication');
assert.commandWorked(master.adminCommand({fsync: 1, lock: 1}),
'failed to re-lock the primary');
};
this.checkReplicatedDataHashes = function() {
ReplSetTest({nodes: 0}).checkReplicatedDataHashes.apply(this, arguments);
};
this.checkReplicaSet = function() {
ReplSetTest({nodes: 0}).checkReplicaSet.apply(this, arguments);
};
this.dumpOplog = function() {
print('master-slave cannot dump oplog');
};
}
TestData = testData;
// Since UUIDs aren't explicitly replicated in master-slave deployments, we ignore the UUID
// in the output of the 'listCollections' command to avoid reporting a known data
// inconsistency issue from checkReplicatedDataHashes().
const ignoreUUIDs = serverDesc.type === 'master-slave';
let fixture = null;
if (serverDesc.type === 'replset') {
fixture = new ReplSetTest(serverDesc.uri);
} else if (serverDesc.type === 'master-slave') {
fixture = new MasterSlaveDBHashTest(serverDesc.uri);
} else {
throw 'unrecognized server type ' + serverDesc.type;
}
fixture.checkReplicatedDataHashes(undefined, excludedDBs, ignoreUUIDs);
}
let startTime = Date.now();
assert.neq(typeof db, 'undefined', 'No `db` object, is the shell connected to a mongod?');
// stores each server type (master/slave or replset) and uri.
const serversNeedingReplDataHashCheck = [];
const primaryInfo = db.isMaster();
const isMongos = primaryInfo.msg === 'isdbgrid';
const isReplSet = primaryInfo.hasOwnProperty('setName');
const uri = db.getMongo().host;
assert(primaryInfo.ismaster,
'shell is not connected to the primary or master node: ' + tojson(primaryInfo));
assert(isMongos || isReplSet || isMasterSlave(uri),
'not replset, master/slave, or sharded cluster');
if (isMongos) {
// Add shards and config server if they are replica sets.
let res = db.adminCommand('getShardMap');
assert.commandWorked(res);
const csURI = res.map.config;
res = db.adminCommand('listShards');
assert.commandWorked(res);
const shardURIs = res.shards.map((shard) => shard.host);
checkAndAddServerDesc(csURI, serversNeedingReplDataHashCheck);
shardURIs.forEach((shardURI) => {
checkAndAddServerDesc(shardURI, serversNeedingReplDataHashCheck);
});
} else {
checkAndAddServerDesc(uri, serversNeedingReplDataHashCheck);
}
const threads = [];
const excludedDBs = jsTest.options().excludedDBsFromDBHash || [];
serversNeedingReplDataHashCheck.forEach((serverDesc) => {
const thread = new ScopedThread(checkReplDataHashThread, serverDesc, TestData, excludedDBs);
threads.push({serverDesc: serverDesc, handle: thread});
thread.start();
});
if (serversNeedingReplDataHashCheck.length === 0) {
let skipReason = 'No multi-node replication detected in ';
if (isMongos) {
skipReason += 'sharded cluster';
} else if (isReplSet) {
skipReason += 'replica set';
} else {
skipReason += 'master-slave set';
}
print('Skipping consistency checks for cluster because ' + skipReason);
return;
}
const failedChecks = [];
threads.forEach(thread => {
thread.handle.join();
if (thread.handle.hasFailed()) {
failedChecks.push(thread.serverDesc.uri + ' (' + thread.serverDesc.type + ')');
}
});
assert.eq(failedChecks.length,
0,
'dbhash check failed for the following hosts: ' + failedChecks.join(','));
const totalTime = Date.now() - startTime;
print('Finished consistency checks of cluster in ' + totalTime + ' ms.');
})();
|
